/*
MD_Parola - Library for modular scrolling text and Effects
  
See header file for comments
  
Copyright (C) 2013 Marco Colli. All rights reserved.

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <MD_Parola.h>
#include <MD_Parola_lib.h>
/**
 * \file
 * \brief Implements dissolve effect
 */

void MD_PZone::effectDissolve(bool bIn)
// Dissolve the current message in/out
{
	switch (_fsmState)
	{
	case INITIALISE:	// bIn = true
	case PAUSE:			// bIn = false
	case GET_FIRST_CHAR:	// first stage dissolve
		PRINT_STATE("IO DISS");
		for (uint16_t i=ZONE_START_COL(_zoneStart); i<=ZONE_END_COL(_zoneEnd); i++)
		{
			uint8_t	col = DATA_BAR(_MX->getColumn(i));
				
			col |= (i&1 ? 0x55 : 0xaa);	// checkerboard pattern
			_MX->setColumn(i, DATA_BAR(col));
		}
		_fsmState = GET_NEXT_CHAR;
		break;

	case GET_NEXT_CHAR:		// second stage dissolve
		PRINT_STATE("IO DISS");
		zoneClear();
		if (bIn) commonPrint();
		for (uint16_t i=ZONE_START_COL(_zoneStart); i<=ZONE_END_COL(_zoneEnd); i++)
		{
			uint8_t	col = DATA_BAR(_MX->getColumn(i));
				
			col |= (i&1 ? 0xaa : 0x55);	// alternate checkerboard pattern
			_MX->setColumn(i, DATA_BAR(col));
		}
		_fsmState = PUT_CHAR;
		break;

	case PUT_CHAR:
		PRINT_STATE("IO DISS");
		zoneClear();
		if (bIn) commonPrint();
		_fsmState = (bIn ? PAUSE : END);
		break;

	default:
		PRINT_STATE("IO DISS");
		_fsmState = (bIn ? PAUSE : END);
	}
}
